A) ? 7 joules
B) + 13 joules
C) + 7 joules
D) + 11 joules
Correct Answer: C
Solution :
\[W=\overrightarrow{F}.\overrightarrow{s}=(5\hat{i}+3\hat{j}).(2\hat{i}-\hat{j})\]= 10 ? 3 = 7 JYou need to login to perform this action.
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